Indoor positioning method based on position fingerprint optimization fusion

• Main Authors: FENG LIANG, LI ZHUO, WANG JING, DAI XIAOHONG, CHEN SHENGJUN, WANG WEIMIN, XU XINZHEN
• Format: Patent
• Language: Chinese; English
• Published: 24.10.2023
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

The invention discloses an indoor positioning method based on position fingerprint optimization fusion, and the method comprises the steps: taking a positioning result of an inertial track algorithm as a constraint condition, fusing the constraint condition with a wireless fingerprint positioning result, and eliminating the inherent accumulated error of the inertial track algorithm; for wireless fingerprint positioning errors with random fluctuation, constraint correction processing can also be carried out; meanwhile, in the indoor positioning method based on position fingerprint optimization fusion, when wireless fingerprint positioning is carried out, a small number of APs with unstable detection intensity values or abnormal detection intensity values are eliminated, only stable and effective AP detection values are reserved to participate in matching of a wireless fingerprint database, and in the matching process, according to an established probability matching matrix of RSSI detection data, the positioni